(Science: syndrome) a self-limiting inflammation in the lungs where there is associated infiltration of eosinophils into lung tissue. Chest x-ray reveals pulmonary infiltrates and full blood count (CBC) shows increased numbers of eosinophils. The cause is unknown and the disease often resolves without treatment. Some forms may be treated with oral corticosteroids. Complications include restrictive cardiomyopathy due to fibrosis of the lining of the heart.